Method for controlling an exhaust gas recirculation system of a

Details Method for controlling an exhaust gas recirculation system of a Method for controlling an exhaust gas recirculation system of a

1992-02-13

1993-02-23

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123 1A, F02M 2507

Patent

active

051880873

ABSTRACT:
An engine for an FFV has an alcohol concentration sensor provided in a fuel system for sensing concentration of alcohol in fuel, and an EGR valve provided between an exhaust port and an intake passage of the engine for controlling an EGR ratio. The EGR ratio is increased with an increase of the alcohol concentration, and increased in an intermediate engine load range other than that of other engine load ranges.

REFERENCES:
patent: 4388912 (1983-06-01), Kimura et al.
patent: 4466416 (1984-08-01), Kawamura
patent: 4723527 (1988-02-01), Panten et al.
patent: 4848303 (1989-07-01), Fujimoto et al.
patent: 4971015 (1990-11-01), Gonze
patent: 5060619 (1991-10-01), Sakurai et al.
patent: 5090389 (1992-02-01), Oota
patent: 5115790 (1992-05-01), Kawamura

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